LES B Series
80 watt Eighth-Brick Isolated DC-DC Converters

The LES B series of eighth-brick isolated DC-DC converters comprises eigth single output models offering fully regulated voltages of 1 V, 1.2 V, 1.5 V, 1.8 V, 2.5 V, 3.3 V, 5.0 V or 12.0 V. These converters can deliver up to 25 amps and up to 80 watts of output power, depending on the particular model. They have a wide 2:1 input range of 36 to 75 Vdc and are designed primarily for use with standard 48 V telecommunications equipment supplies.

LES B series converters have a typical efficiency of up to 92% and accommodate an ambient operating temperature range of -40 to 85˚C. Their open-frame design is optimized for forced air or conduction cooling and there is a choice of surface-mount or through-hole terminations. The conversion technology employs 500 kHz fixed frequency switching to help minimize external EMI filtering requirements.

Standard features include output trim, remote enable, undervoltage lockout and differential remote sense, with non-latching overvoltage and overtemperature protection. LES B series converters have an installed height of just 0.33 inch (8.4 mm), making them ideal for systems with demanding inter-board spacing requirements.

Models - Stock Check

Search by Part Number

New Search by Requirements

Select Type

AC-DCDC-DC

Package Size

Package Size

Input Voltage

90 to 264 Vac90 to 305 Vac180 to 264 Vac
180 to 305 Vac380 to 480 Vac

Input Voltage

9 to 18 Vdc9 to 36 Vdc18 to 36 Vdc18 to 60 Vdc18 to 75 Vdc36 to 60 Vdc36 to 75 Vdc36 to 72 Vdc40 to 72 Vdc40 to 75 Vdc44 to 101 Vdc66 to 160 Vdc200 to 400 Vdc250 to 420 Vdc7.5 to 14 Vdc9 to 75 Vdc4.5 to 75 Vdc